75168450052 has 6 divisors (see below), whose sum is σ = 131544787598. Its totient is φ = 37584225024.

The previous prime is 75168449999. The next prime is 75168450059. The reversal of 75168450052 is 25005486157.

It can be written as a sum of positive squares in only one way, i.e., 68076115396 + 7092334656 = 260914^2 + 84216^2 .

It is a junction number, because it is equal to n+sod(n) for n = 75168449990 and 75168450008.

It is not an unprimeable number, because it can be changed into a prime (75168450059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9396056253 + ... + 9396056260.

Almost surely, 2^75168450052 is an apocalyptic number.

It is an amenable number.

75168450052 is a deficient number, since it is larger than the sum of its proper divisors (56376337546).

75168450052 is a wasteful number, since it uses less digits than its factorization.

75168450052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18792112517 (or 18792112515 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 43.

The spelling of 75168450052 in words is "seventy-five billion, one hundred sixty-eight million, four hundred fifty thousand, fifty-two".